83805085 has 16 divisors (see below), whose sum is σ = 123774336. Its totient is φ = 53045568.

The previous prime is 83805083. The next prime is 83805101. The reversal of 83805085 is 58050838.

It is a cyclic number.

It is not a de Polignac number, because 83805085 - 2¹ = 83805083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83805083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91639 + ... + 92548.

It is an arithmetic number, because the mean of its divisors is an integer number (7735896).

Almost surely, 2^83805085 is an apocalyptic number.

It is an amenable number.

83805085 is a deficient number, since it is larger than the sum of its proper divisors (39969251).

83805085 is a wasteful number, since it uses less digits than its factorization.

83805085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184212.

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 83805085 is about 9154.5117291967. The cubic root of 83805085 is about 437.6129080016.

The spelling of 83805085 in words is "eighty-three million, eight hundred five thousand, eighty-five".